Sign-receptacle.



a. s. @Rossum & v, R. mzsmmia SIGN RBGEPTAGLE.

APPLIoATIoN FILED Nov.1, 1910.

Patented 00%. 29, E912.

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W/TA/ESSES TTTTTTFQD STATES PATENT @FFTQE JAMES S. CBOSSLEY, OF SOLVAY, AND VICTOR R. DESPRD, OF'SYRACUSE, NEW YORK,

ASSIGNORS TO PASS & SEYMOUR, INCL, OF SOLVAY, NEW YORK, A CORPORATLON.

SIGN-RECEPTACLE.

Specification of Letters Patent.

' rammen oet.. 29,1912.

Application filed November 1, 1910. Serial No. 590,233.

Our receptacle consists essentially of a oney piece porcelain body carrying the necessary terminals and of a metallic clamping ring adapted to engage with a threaded flange on the body.

The invent-ion will be understood by reterence to the drawing herewith in which the reference letters and numerals ot' this description are used to indicate corresponding parts in all the gures.

Figure 1 is a side elevation of our receptacle in position on the sign plate of which 1 lslight outwardcurve permitting its outer @edge to engage the sign plate snugly and the lower half is shown in sect-ion. Fig. 2 is a front elevation of the preceding with the lamp removed. Fig. 3 is a rear elevation of the receptacle. .Fig 4 is a side elevation with the parts separated. Fig. 5 shows the center lamp terminal detached. y

In theiigures, A indicates the body of porcelain, or other suitable insulating material,vcarrying the lamp terminals and the wire terminals.

B is the metallic clamping ring.

The body is substantially cylindrical and is provided onits outer or yfront end with thetlange 1, having the external thread 2, and with the annular margin 3 around the flange whereby is formed the annular groove 4, between the flange and margin to receive the sleeve of the clamping ring. Within the lange is the usual recess or socket for the lamp terminals. The outer threaded terminal 7 is secured in position by screws 8 8. The inner terminal 10 is separated from the outer byl suitable ribs 11 formed of the'in.- sulating material of the body and is.f secured in position by the single screw 12. The body is formed on its rear surface with the parallel grooves 15 for the conductors `and with the depressions 17 and 18 for the wire terminals 19 and 20, which have their ends, extending out into the grooves, provided with the binding screws 21 to engage with the usual short stripped portions of the conduct-ors. The wire terminal 19 is set in the depression 17 and is connected to the outer lamp terminal 7 by one of the screws 8; the wire terminal 2O is set in the depression 18 and is connected by the single screw 12 to the center lamp terminal 10. Between the grooves the rear surface of the body' may be out away to Jform the depression 25, leaving side projections 26 flush with the intermediate projections 27; between these insulating cement may be run in to cover the terminals, joints etc.

The metallic clamping ring B consists oi ythe threaded sleeve 30 adapted to engage with the thread 2 on the iange and of the rim- 31 engaging with the outer surface of the sign plate 32 when the ring itself is screwed home. This is made to tit the holes 33 in the sign plate with sutllcient snugness so that the receptacles will be centered when clamped in position.

The rim is best formed as shown with a with a certain amount of rosiliencyto counteract the results of vibration. It is pro- -vided with the holes 35 for the spanner 4wrench. The gasket 3G of rubber, cloth or `other suitable material is desirably interposed between the rim and the plate to insure a tight joint, and to permit screwing yhome with a good bearing.

The ribs 11 are one particular form that might sometimes be useful more or less to assist in maintaining the terminals in place -and to assist in the assembling.

As shown in Fig. 5 the outer terminal, 0r

threaded shell, is provided with the flanges y ovving to the expansion and contraction of the metallic sign plate.y @ur ring and clamping means are strong and also inconspicuous; the smallest possible projection appears on the front of the plate. This is important, for, as the whole object of these receptacles and signs is advertisement or decoration, it is desirable to reser.ve.the fro-nt of the plate, so far as possible, for the lamps, and to avoid unsightly projections by concealing the mechanisms, connections, lamp supporting means etc., as far as possible, on the back. After the receptacles have been installed the sign plate and the rims of the clamping rings may be painted, rendering the latter almost indistinguishable. Finally our receptacle is strong and simple, economical to manufacture and convenient to install.

Having described our claim,-

1. ln an electric sign, the combination with a thin metal sign plate provided with a series of suitable lamp holes, of a series of receptacles each comprising abody of insulating material, said body being formed at its front end withl a screw threaded tubular flange slightly less in diameter than the lamp hole and With a shoulder around the flange to engage with the Arear surface of the sign, suitable lamp and vvire'terminals and connections on the body, and a thin metal clamping ring for the receptacle consisting of a threaded sleeve to extend inwardly through the lamp hole and engaging With the threaded flange, and of an outwardly curved rim adapted to engage With the outer surface of the sign plate by its extreme edge, said receptacles being adapted to lie substantially entirely on the rear surface of the sign plate.

2. ln a receptacle for incandescent electric signs, the combination with a. substantially cylindrical porcelain body having at invention, We

with a substantially cylindrical porcelain body having at its frontend an annular, marginal Wall, an annular flange Within the Wall and separated therefrom by an annular groove, said flange being screw threaded on its exterior surface, said thread extending down adjacent to the bottom of the groove. of a metal clamping'ring having a rim and a threaded sleeve to extend into the groove and engage with the `threaded flange, said rim being adapted to engage With the front surface of the sign plate and the margin of the Wall to engage With the rear surface When the parts are in position.

4. A. receptacle for incandescent electric lamp signs, having in combination a porcelain body formed vvithl a screw-threaded tubular portion and with a shoulder to engage With the rear surface of the sign plate, suitable lamp and Wire terminals and con.- nections suitably 'secured on the body, and means for clamping the receptacle on the sign plate, said means consisting of a single metallic clamping ring provided With a threaded sleeve to extend through the hole in the sign plate and engage the thread'on the body and with a rim to engage the outer surface of the sign plate.

5. A receptacle for incandescent electric lamp signs comprising a body of insulating material having an externally threaded, cy-

lindrical flange and a projection to engage With the rear surface of the sign-plate, and means to secure the Ioody on the sign-plate, said means consist-ing of a thin metal clamping ring provided with a threaded sleeve to extend through a hole in the sign-plate for engaging the threaded flange on the body and With a rim to engage with the outer surface of the sign-plate.

ln testimony whereof ive have signed our names to this speci'cation in the presence of two subscribing Witnesses.

JriMES S. CROSSLEY. "VCTOR DESPARU. lJ'iitnesses:

l. Samsnnnr, "ii/i7. BREWSTEB HALL. 

